280119100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{829}}^1$

素因数の和:983

約数の個数: 72

約数和(自身を含む): 633987200

約数和(自身を除く): 353868100

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 109, 124, 155, 218, 310, 436, 545, 620, 775, 829, 1090, 1550, 1658, 2180, 2725, 3100, 3316, 3379, 4145, 5450, 6758, 8290, 10900, 13516, 16580, 16895, 20725, 25699, 33790, 41450, 51398, 67580, 82900, 84475, 90361, 102796, 128495, 168950, 180722, 256990, 337900, 361444, 451805, 513980, 642475, 903610, 1284950, 1807220, 2259025, 2569900, 2801191, 4518050, 5602382, 9036100, 11204764, 14005955, 28011910, 56023820, 70029775, 140059550, 280119100]

約数ペア:

[(1, 280119100), (2, 140059550), (4, 70029775), (5, 56023820), (10, 28011910), (20, 14005955), (25, 11204764), (31, 9036100), (50, 5602382), (62, 4518050), (100, 2801191), (109, 2569900), (124, 2259025), (155, 1807220), (218, 1284950), (310, 903610), (436, 642475), (545, 513980), (620, 451805), (775, 361444), (829, 337900), (1090, 256990), (1550, 180722), (1658, 168950), (2180, 128495), (2725, 102796), (3100, 90361), (3316, 84475), (3379, 82900), (4145, 67580), (5450, 51398), (6758, 41450), (8290, 33790), (10900, 25699), (13516, 20725), (16580, 16895)]